Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

A big-time Google upgrade could put an end to the struggle of scanning a QR code from a long way away. Whether it's across the room on a wall or across the highway on a billboard, a new scanner ...

Why your phone’s camera is secretly a barcode scanner Modern phones treat barcodes and QR codes as just another kind of visual information, so the same camera you use for photos can also read the ...